Abstract
The absolute neutron flux in a Hanford Site waste tank at Richland, Washington, was estimated to ascertain if significant radiation damage had occurred in the steel wall of the tank. The tank contains actinides of various species and other radioactive material in various concentrations in approximately 1 million gallons of waste sludge. A conservative estimate of the neutron sources from the spontaneous fission and (α, n) reactions resulting from the decay of the actinides was made using the SOURCES code. This neutron source was used in a neutron transport calculation to determine the multiplication resulting from actinide fission and the subsequent neutron fluxes. The radiation fluence, hydrogen production, helium production, and displacements per atom in the steel walls were calculated using the absolute neutron fluxes. The results show that the fluxes are so small that the radiation damage should be insignificant.
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